Closure for paper receptacles.



M. P. JANISCH.

CLOSURE FOR PAPER RECEPTACLES.

APPLICATION FILED mun, 1915.

Patented July 27 1915.

14 uemfo'a MAXIMILLIAN P. JANISOH, OF MILWAUKEE, WISCONSIN, ASSIGNOR TOU. S, FIBRE BOTTLE MCHY. 00., OF MILWAUKEE, WISCONSIN, A CORPORATION OFWISCONSIN.

CLOSURE FOR PAPER RECEPTAGLES,

Specification of Letters Patent. Patented July 1915,,

Application filed January 11, 1915. Serial No. 1,565.

I To all whom it may concern:

Be it known that I, MAXIMILLIAN P. J AN- ISCH, a citizen of the UnitedStates, residing at Milwaukee, county of Milwaukee, and State ofWisconsin, have invented new and useful Improvements iii Closures forPaper Receptacles, of which the following is a specification.

My invention relates to improvements in closures for paper receptacles,having cylindrical mouths, and pertains especially to that class ofclosures in which a metallic cap receiving mouth piece is adjusted tothe circular walls of the receptacle.

The object of my invention is to provide a form of construction, whichwill be inexpensive and efficient, andwhich may be utilized to supportor retain a removable cap in fluid tight relation to themouth piece orin hermetically sealed relation thereto, if desired.

In the drawings-Figure 1 is a vertical sectional view of a fragment of apaper bottle embodying my invention, the cap being illustrated in theposition to which it is adjusted preparatory to the operation ofpressing it into. interlocking engagement with the mouth piece, and withdottedlines indicating the position of said cap when in suchinterlocking engagement. Fig. 2 is a similar view, showing an ordinarycap as it is used in connection with a mouth piece embodying one featureof my invention. Fig. 3 is a lan view of the mouth piece illustrated inFigs. 1 and 2.. Fig. 1 is a similar view, showing a slightly modifiedconstruction'of the mouth piece. a fragmentary sectional view, showing aportion of a cap in sealing relation to the interlocking voroove of themouth piece, the cap illustrated being of the type shown in Fig. 1. Fig.6 is a fragmentary view of a mouth piece embodying a slight modificationfrom that shown in Figs. 1 and 2. and utilized to receive an ordinarycap of which a fragment is also illustrated.

Like parts are identified by the same reference characters throughoutthe several views.

A represents the substantially cylindrical wall at the mouth portion ofa paper receptacle. The wall A is slightly tapered upwardly but this isimmaterial to the invention herein disclosed. A metallic mouth piece isformed to embrace the upper margin employ a circular cap Fig. 5 is ofthe wall A in clamping relation thereto. This mouth piece comprises anannular strip of metal bent or folded to form an annular memberB,capping the upper margin of the wall A with a down turned portion Cinclosing the marginal portion of. the wall A, and an inwardly turnededge D in clamping engagement with said wall; The strip composing themouth piece is also downwardly bent on the inner side to form a memberE, adapted to embrace the inner surface of the wall of the receptacle A,and the lower marginal portion of-this member E 1s reversely-bent toform an inwardly and upwardlv turned loop F, which is preferstrip onthis side is turned in the direction of the member E, thereby forming apartially inclosed annular channel G, the lower portion of which isconcavely curved in cross section.

In the construction shown in Fig. 1, I

H, having a downturned marginal flange H. The cap H is formed of paperor other flexible material, and whenfthe flange H is inserted in thepocket G and the cap forced downwardly, the marginal edge of the flangeH will be bent inwardly following the contour of the channel or pocketG, and will be thereby folded u on itself substantially as indicated bvdotted lines in Fig. 1. The edge or margin of the flange H may thereforeultimatelv reach the point indicated by the dotted line at h. The capwill therefore be. securely interlocked with the mouth piece and, ifdesired, it may be sealed therein by paraffin or other sealing material,as clearly illustrated in Fig. 5.

It will be observed that the portion E of the mouth piece has a slightconical taper, that is to say, this wall E extends downwardly andoutwardly in the form of a slightly tapered cone. I am therefore enabledto use the ordinary disk shaped cap I in a mouth piece of thischaracter, such cap resting upon the edge portion F of the inturnedmargin of the mouth piece and also bearing against the wall E below theportion having the smallest diameter. Where the cap I is employed, itwill of course be sprung into position in the usual manner followed wheninserting the caps in ordinary glass milk bpttles.

Referring to Fig. 4, it will be observed that the mouth piece is split,as indicated at J, whereas in Fig. 3 it is shown as comprising anintegral ring. The split mouth piece is particularly adapted to be usedwith receptacles, the walls of which have sufficient strength to connectthe separated ends of the mouth piece and prevent them from spreading atthe point J.

In Fig. 6 I have illustrated a slight modification of the mouth pieceshown in Figs. 1 and 2, which consists merely in bending the innermargin F of the metal strip out wardly until it approximately bearsagainst the member E. This form of construction will of course only beused where it is not desired to use the caps H, shown in Fig. 1.

1. The combination with a receptacle, having an annular wallconstituting amouth portion, of a mouth piece covering the upper marginof said wall and comprising a strip of suitable material provided withcircular outer and inner members embracing said wall, the-inner memberhaving a conically tapered wall converging upwardly and said innermember being also provided with an inturned flange at its larger orlower end, comprising the inner marginal portion of said strip, andconstituting a cap receiving rest.

2. The combination with a receptacle, having an annular wallconstituting a mouth portion, of a mouth piece covering the upper marginof said wall and comprising a strip of metal provided with circularouter and inner members embracing said wall, the inner member havingconically tapered Walls converging upwardly, and said inner member beingalso provided with an inturned circularly curving flange at its largeror lower end, comprising the inner marginal portion of said strip ofmetal and constituting a cap receiving rest, said flange being alsoturned upwardly along a curved line and forming a channel adapted toreceive a cap flange.

'3. The combination with a conically tapered paper bottle, having anannular wall constituting a mouth portion, of a mouth piece covering theupper margin of said Wall and comprising a strip of metal provided withcircular outer and inner members embracing said wall, the inner memberhaving a slight conical upward taper, and said inner member being alsoprovided with an inturned flange at its larger or lower end, comprisingthe inner marginal portion of said strip of metal and constituting a capreceiving rest, said flange extending along a curved line inwardly,upwardly and outwardly, substantially as described.

4. The combination with a receptacle, having an annular wallconstituting a mouth portion, of a circular strip of metal folded overthe upper margin of said wall and clamped upon its inner and outersurfaces, the inner margin of said strip being in- Wardly, upwardly andoutwardly turned; and the portion of said strip which is clamped uponthe surface of the receptacle wall being slightly enlarged immediatelyabove the shelf formed by said margin.

In testimony whereof I afiix my signature in the presence of twoWitnesses.

MAXIMILLIAN P. J ANISCH.

Witnesses:

LEVERETT 0. WHEELER, IRMA D. BREMER.

